Cast iron trench gratings
1.High Intensity
It adopts macromolecule complex material and reinforcing steel bar moulded by high temperature and press at one time.
2.Durable
Acid-alkali and corrosion resistance; anti-rust; insulation; weatherability; excellent anti-pressure capability.
3.Unique appearance
Rich colors;the cover is not sprayed in surface but painted in whole material so that the color can keep lasted.
4.Burglarproof
this kind of material has no recycle worth so it was burglarproof.At the same time it has locked construction design,it can make goods in the well avoid stolen.Avoid City Black Hole accident.
5.Competitive price
The price of compound manhole cover is lower than stipulated standard cast iron ones.
6.Save mine resource
It is made by regenerated resin or regenerated plastic raw material, which save application of cast iron.